Silver cyanide drying method

A technology of silver cyanide and sodium cyanide, applied in drying, drying machine, drying solid materials and other directions, can solve the problems of low safety, large heat loss, and high toxicity, so as to improve drying efficiency and avoid Waste of heat energy, effect of ensuring safety

CN113188309APending Publication Date: 2021-07-30福建紫金贵金属材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-07-30
Patent Text Reader

Abstract

The invention relates to the technical field of silver cyanide drying, in particular to a silver cyanide drying method. The method comprises the following steps: 1, weighing quantitative metal silver and nitric acid through weighing equipment, then weighing quantitative water and quantitative sodium cyanide, and then respectively putting the weighed materials into respective placing containers; and 2, putting the weighed quantitative silver and nitric acid into a mixing container at the same time, completely dissolving the silver, then adding the quantitative water weighed in step 1 for dilution, adding the weighed quantitative sodium cyanide into the mixed solution after dilution, and closing a shielding cover of the mixing container after the reaction is completed. According to the device, silver cyanide is pre-crushed, the drying efficiency of the silver cyanide is improved, the phenomenon that the silver cyanide is attached to the outer sides of the containing containers and is inconvenient to clean is avoided to the maximum extent, meanwhile, waste of heat energy in the drying process is avoided to the maximum extent, and the safety of the silver cyanide during drying is guaranteed.
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Description

technical field

[0001] The invention relates to the technical field of silver cyanide drying, in particular to a silver cyanide drying method. Background technique

[0002] Silver cyanide is white or light gray powder, odorless, tasteless, and highly toxic. Inhalation of silver cyanide can cause cyanide poisoning, headache, fatigue, dyspnea, convulsions, coma, and even death. Inhalation of isoamyl nitrite Detoxification, this product is mainly used for medicine and silver plating. It should be stored in a cool and ventilated warehouse, away from fire and heat sources. The package should be sealed. It should be stored separately from oxidants, acids and food chemicals. Do not store them together. Suitable materials should be prepared to contain the leakage. Silver cyanide is usually used in medicine, silver plating, as a protective coating, autoclave lining, electrical contacts, and electroplating of aircraft engine bearings. Ether chlorine and alcohol are used to make steric...

Examples

Embodiment 1

[0023] The invention provides a technical solution:

[0024] A method for drying silver cyanide, comprising the following steps:

[0025] Step 1: take quantitative silver metal and nitric acid by weighing equipment, then weigh quantitative water and quantitative sodium cyanide, and then put them into respective storage containers;

[0026] Step 2: Put the weighed quantitative silver and nitric acid into the mixing container at the same time, dissolve the silver completely, then add the quantitative water weighed in step 1 to dilute, add the weighed quantitative sodium cyanide, close the shielding cover of the mixing vessel after completing the reaction;

[0027] Step 3: Separating and washing the precipitate obtained in step 2, and then putting the precipitate into a holding container;

[0028] Step 4: Put the sediment holding container washed in step 3 into the heating device for heating. When putting it into the holding container, put it on the top of the built-in vibratio...